Title :
IronIC patch: A wearable device for the remote powering and connectivity of implantable systems
Author :
Olivo, Jacopo ; Carrara, Sandro ; De Micheli, Giovanni
Author_Institution :
Integrated Syst. Lab., EPFL, Lausanne, Switzerland
Abstract :
A wearable device to power implanted sensors by means of an inductive link is presented. The system, having size 69 × 40 mm2, is designed to be embedded into a skin patch and located over the implantation area. The system can transfer up to 15 mW within 6 mm in air. Tested with a 17 mm thick beef sirloin placed between the inductors, the device is able to deliver up to 1.17 mW. Downlink communication with the implanted sensors is performed at 100 kbps by using amplitude modulation. Uplink communication is performed at 66.6 kbps by using load modulation. Long range communication between the system and remote devices is enabled by a bluetooth module. The system is powered by two rechargeable lithium-ion polymer batteries and has an autonomy of 10 h in stand-by mode and about 1.5 h in transmitting mode.
Keywords :
biomedical communication; biomedical electronics; polymers; sensors; Bluetooth module; IronIC patch; Uplink communication; byte rate 100 kByte/s; byte rate 66.6 kByte/s; downlink communication; implantable systems; inductors; rechargeable lithium-ion polymer batteries; remote powering; size 17 mm; size 6 mm; skin patch; time 10 h; wearable device; Batteries; Bluetooth; Coils; Downlink; Inductors; Performance evaluation; Sensors; Inductive link; energy harvesting; implantable sensors; remote powering; wearable device;
Conference_Titel :
Instrumentation and Measurement Technology Conference (I2MTC), 2012 IEEE International
Conference_Location :
Graz
Print_ISBN :
978-1-4577-1773-4
DOI :
10.1109/I2MTC.2012.6229168
